Featuring a widest angle of view (122°) ever built with a f/2.8 lens, this is an ideal lens for a variety types of photography. From landscape, architecture, interior, travel to the most important, astro photography. The lens is also the lightest and the most compact of its class and is good for everyday shooting. It also features a close-to-zero optical distortion, allowing photographers to take landscape/architecture shots with straight lines retained. A water and dust repelling ‘Frog Eye Coating’ is added at the front element of the lens. Users can use CPL / ND filters by adding a optional Laowa 100mm filter holder system.